LED driver chip, Led constant current driver circuit, DC voltage

 Xitanium 50 W 1.4 A 54V Output Max Dimmable LED Driver Module with SimpleSet

https://www.futureelectronics.com/p/semiconductors--Led-lighting-components--led-driver-modules-rev--constant-current-acdc-led-drivers/xi050c140v054dsm5m-signify-north-america-4130591